Sabermetric stats like
WAR and Wins Above Average are computed at the team/position level by
prorating the players' team-season totals by time played at the
position, so they may not represent exactly what the player did at
that position, but rather it assumes they were equally valued at each
position. Fielding Runs is based on actual time at the position.

Also player tooltips will only show PA's/IP for these stats.

You can convert WAR to a team record by taking wins = WAR +
.294*G and losses = G-wins. You can convert WAA to a team record by
taking wins = WAA + .5*G and losses = G-wins.